The phrase "did slow burn" is written phonetically as /dɪd sloʊ bɜːrn/. The spelling of this phrase can be explained through its individual phonetic sounds. "Did" is spelled with a short "i" sound and a voiced "d" at the end. "Slow" is spelled with a long "o" sound and a voiced "s" and "l." "Burn" is spelled with a rounded "er" sound and a voiceless "b" and "r." The combination of these sounds creates the phrase "did slow burn."